Spontaneous Renal Artery Dissection in COVID-19 Pneumonia: Potential Danger of Cytokine Storm

Figure 2

(a) Coronal CT angiography image and (b) anterior volume-rendered 3D MPR coronal image were obtained after intravenous contrast material in arterial phase reveals dissection flap (straight red arrow) of the right renal artery (red circle) in (a); (b) demonstrates focal eccentric thrombosis and attenuated flow and reduced caliber of the lower lobe segmental branch (curved red arrow) and upper lobe subsegmental branch (angled red arrow), resulting in infarct (red rectangular); and also demonstrates focal thrombosis in the mid-left main renal artery and dissection flap (orange circle), causing significant stenosis (orange straight arrow) and complete thrombosis of the middle segmental branch of the left renal artery (curved orange arrow) and partial stenosis of the upper segmental branch (angled orange arrow) with new development of infarct in some part of the mid pole as well (orange rectangular).

(a)

(b)